... raw material, production process control, final product quality control.2. Third part inspection available upon requirement ... competitive and reasonable price, acceptable and stable in quality, circumspect and satisfactory of service. Punctual delivery ... Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, Aluminum, Aluminum alloy etc.StandardISO, GB, ASTM, DIN, JISEquipmentmelting furnace ...